Chris O'Donnell and LL Cool J front NCIS: Los Angeles,a spin-off of the hit CBS procedural, playing special agents assigned to the high-tech Office of Special Projects. The series launched in a two-episode crossover during NCIS' sixth season. Academy Award winner Linda Hunt also stars, and Rocky Carroll's Leon Vance will appear on both NCIS shows.

Joseph Fiennes and Lost's Sonya Walger star in ABC's FlashForward, in which a bizarre event (everyone in the world loses consciousness simultaneously) allows millions of people to briefly see flashes of the future. What do they see? What does it all mean? And should people be worried if they don't have a future? Having so many questions before the show even launches is an excellent way to build buzz.

On the lighter side, Fox's musical dramedy Glee picks up where its spring preview left off. Mr. Schuester (Matthew Morrison) needs six more students to compete at regionals and recruiting them is where the fun starts. Jane Lynch's iron-fisted cheerleading coach is a dream, and Kristin Chenoweth, Victor Garber and rapper Eve will all guest-star.